knowhash

Support

Guides for setting up knowhash and sorting out common problems, plus how to reach us.

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Contact us

The fastest way to reach us is by email. We read and reply to every message ourselves, and aim to reply within one business day.

Email feedback@knowhash.com

Billing and subscriptions

Manage or cancel your subscription, update your card, or view invoices any time from the Manage billing button inside the extension. It opens a secure billing portal where changes take effect immediately, so there's no need to email us for these.

Common questions